Comparison

Subnet Calculator + vs VSWR Convert +

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Subnet Calculator +

This utility app simplifies network calculations for professionals and students. It offers tools for IPv4 and IPv6 subnetting, including live CIDR sliders and subnet splitting. Results can be easily shared or copied.

Highlights
  • IPv4 subnet calculator with CIDR slider
  • Subnet Splitter for VLSM
  • IPv6 calculator with prefix slider
  • Auto-detect device IP from Wi-Fi
  • Navigate adjacent subnets
  • Share or copy results
  • Native Mac support
Features
Read full description

SubnetCalc is a fast, intuitive subnet calculator for networking professionals and students. Features: - IPv4 subnet calculator with live CIDR slider (1-30) - Subnet Splitter for equal-split and VLSM subdivision - IPv6 calculator with prefix slider (1-128) - Auto-detect your device's IP and subnet from Wi-Fi - Navigate between adjacent subnets - Share or copy results instantly - Native Mac support via Mac Catalyst Enter any IP address, adjust the CIDR prefix with the slider, and instantly see: - Subnet mask - Network address - Broadcast address - Usable host range - Maximum hosts - Wildcard mask The Subnet Splitter lets you divide a network into equal subnets or use VLSM to allocate subnets by host count. Perfect for network planning and design. No ads. No tracking. No subscription.

About

VSWR Convert +

Features
Read full description

Utility to convert VSWR to from various formats. Useful for quick VSWR RF calculations

Screenshots

Subnet Calculator +3 screens
VSWR Convert +4 screens

Verdict

The call

The clearest difference is price: Subnet Calculator + at Free against VSWR Convert +'s $0.29. VSWR Convert +'s advantage is in-app purchases (none vs 4) and update cadence (every 8 days vs every 64 months). On ads, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Subnet Calculator + is free to download; VSWR Convert + costs $0.29 up front. Subnet Calculator + sells 4 one-off in-app purchases. VSWR Convert + asks for nothing beyond the download.

UpkeepUpdate frequency

Subnet Calculator + ships an update every 64 months, VSWR Convert + every 8 days. Both last shipped on October 27, 2026.

Scorecard3 real differences · 7 level
Subnet Calculator + versus VSWR Convert +: the parameters behind the verdict, then further details
ParameterSubnet Calculator +VSWR Convert +
PriceFree — better$0.29
Rating4.0 (7 ratings) — better—
Positive reviews52.9% of reviews—
Number of ratings7 — better—
Update frequencyEvery 64 monthsEvery 8 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree—
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS18.617.0 — better
Further details — not scored
Size1 MB1 MB
Age rating4+4+
DeveloperSteven EpplerJeff Curtis

In-app purchases

4 purchases

Subnet Calculator +

One-time4
  • Small Tip$0.99
  • Medium Tip$1.99
  • Large Tip$4.99
Show 1 more
  • Huge Tip$9.99
None

VSWR Convert +

No in-app purchases

Questions

Is Subnet Calculator + free?
Subnet Calculator + is free to download, with in-app purchases available.
Is VSWR Convert + free?
VSWR Convert + costs $0.29, with no in-app purchases.
Do Subnet Calculator + or VSWR Convert + have ads?
Neither Subnet Calculator + nor VSWR Convert + shows ads.
Which is updated more often, Subnet Calculator + or VSWR Convert +?
Subnet Calculator + ships an update every 64 months, and VSWR Convert + every 8 days. Most recently, Subnet Calculator + was updated on October 27, 2026 and VSWR Convert + on October 27, 2026.

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